# Bettermann PG21 Polystyrene Locknut Light Grey

**URL:** https://aio.lv/en/product--bettermann-1131-129aa-ob003--12481827
**Data updated:** 2026-05-27 17:55 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** Bettermann
**Manufacturer code:** 1131-129AA-OB003
**EAN:** 4012195179115
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 2.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bettermann-1131-129aa-ob003--12481827

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Bettermann PG21 locknut is a high-quality fastening component made of durable polystyrene. Designed for secure cable gland installation, this light grey nut ensures reliable fixation in electrical enclosures and junction boxes. It provides excellent mechanical stability and is suitable for standard industrial and commercial electrical wiring applications requiring PG21 thread compatibility.

## Long description

The Bettermann PG21 Polystyrene Locknut in light grey is a professional-grade fastening component engineered for the secure installation of cable glands. Constructed from high-quality, durable polystyrene, this locknut provides a reliable solution for fixing cable entries into electrical enclosures, junction boxes, and control panels. Its precise thread design ensures a firm grip, maintaining the integrity of electrical connections in various industrial and commercial environments.
Advantages
This locknut offers exceptional mechanical stability and resistance to environmental factors, ensuring that cable glands remain securely in place even under vibration or mechanical stress. The lightweight yet robust polystyrene material is resistant to corrosion, making it an ideal choice for long-term electrical installations. Its light grey finish provides a clean, professional appearance that integrates seamlessly with standard electrical equipment housings.
Suitable for
Securing cable glands in junction boxes
Fastening electrical conduits to enclosures
Industrial control panel installations
Commercial electrical wiring projects
When it may not be suitable
This product is not intended for use in high-temperature environments where polystyrene may lose its structural integrity. It is also not suitable for applications requiring metal-to-metal grounding or high-impact mechanical protection where steel or brass locknuts would be necessary.
Key specifications
Thread size: PG21
Material: Polystyrene
Color: Light grey
Application: Cable gland fixation
How to use
To install the locknut, first insert the cable gland through the pre-drilled hole in the enclosure wall. Once the gland is positioned, thread the Bettermann PG21 locknut onto the gland from the inside of the enclosure. Tighten the nut manually or with appropriate tools until it is firmly seated against the enclosure wall, ensuring the cable gland is held securely in place.
What to consider before purchase
Verify that your cable gland and enclosure hole are compatible with the PG21 thread standard.
Ensure the operating environment does not exceed the thermal limits of polystyrene.
Confirm the required quantity for your specific installation project.
Usage recommendations
For optimal performance, ensure the locknut is tightened sufficiently to prevent loosening over time, but avoid over-tightening to prevent potential damage to the plastic threads.

## FAQ

### How much does the Bettermann PG21 Polystyrene Locknut cost, and is it available for purchase?

The price is 2.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Bettermann products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Bettermann service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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